Pro-Palestinian activists are escorted o

Pro-Palestinian activists are escorted onto a plane heading back to Belgium at Israel’s Ben Gurion international airport near Tel Aviv on April 15, 2012. Israel barred 40 pro-Palestinian activists who had flown in for a “Welcome to Palestine” campaign, detaining 40 passengers on suspicion of being part of the fly-in move, better known as the “flytilla,” with all now likely to be deported as hundreds more would-be protesters were stranded at airports across Europe. AFP PHOTO/JACK GUEZ

Pro-Palestinian activists are escorted onto a plane heading back to Belgium at Israel’s Ben Gurion international airport near Tel Aviv on April 15, 2012. Israel barred 40 pro-Palestinian activists who had flown in for a “Welcome to Palestine” campaign, detaining 40 passengers on suspicion of being part of the fly-in move, better known as the “flytilla,” with all now likely to be deported as hundreds more would-be protesters were stranded at airports across Europe. AFP PHOTO/JACK GUEZ (Photo credit should read JACK GUEZ/AFP/Getty Images)